Patent 8408778

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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PTAB activity (1)

AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.

  • IPR2025-01526IPRfiled Sep 10, 2025vs. Hisense USA Corp. et al.Discretionary Denial

Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.

Cases on file (1)

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Specific litigation cases in our database that name US patent 8408778. The free-form analysis below may also discuss cases beyond this list.

  • Untitled case
    2:25-cv-00312Texas Eastern District CourtActive litigation

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

✓ Generated

Based on the provided patent text and a review of patent litigation databases (including Unified Patents portal information linked within the patent), the following litigation is known to involve US patent 8408778:

1. United States District Court Case

  • Plaintiff(s): Not explicitly named in the provided text, but the current assignee of US8408778 is Light Guide Innovations LLC, which would typically be the plaintiff in an infringement suit.
  • Defendant(s): Not explicitly named.
  • Jurisdiction: Texas Eastern District Court [cite: The provided patent text]
  • Case Number: 2:25-cv-00312 [cite: The provided patent text]
  • Filing Date: Not explicitly stated; however, the case number "2:25-cv-00312" indicates a filing in 2025.
  • Outcome or Current Status: Active litigation. [cite: The provided patent text]

2. Patent Trial and Appeal Board (PTAB) Case

  • Plaintiff(s) (Petitioner): Not explicitly named in the provided text; the patent record shows "Petitioner: " with an empty field. [cite: The provided patent text]
  • Defendant(s) (Patent Owner): Not explicitly named, but would be the patent owner of US8408778, Light Guide Innovations LLC.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB) [cite: The provided patent text]
  • Case Number: IPR2025-01526 [cite: The provided patent text]
  • Filing Date: Not explicitly stated; however, the case number "IPR2025-01526" indicates a filing in 2025.
  • Outcome or Current Status: Not Instituted - Procedural. [cite: The provided patent text]

Please note that while broader litigation campaigns by Light Guide Innovations LLC against various defendants (such as TCL, Hisense, Samsung, and Walmart) involving other patents have been reported, the search results did not provide further specific details for US patent 8408778 in relation to the case numbers 2:25-cv-00312 or IPR2025-01526 beyond what is already stated in the patent document itself.

Generated 5/24/2026, 12:46:32 AM